Home / 14,825.61-20,459.66-8,111.69

Finding the Fourth Proportional to 14,825.61, 20,459.66 and 8,111.69

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Solution

The fourth proportional to 14,825.61, 20,459.66 and 8,111.69 is: 11,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,825.61 : 20,459.66 = 8,111.69 : x
  2. Step 2: Convert to fraction form
    14,825.61/20,459.66 = 8,111.69/x
  3. Step 3: Cross multiply
    14,825.61x = 20,459.66 × 8,111.69
  4. Step 4: Simplify right side
    14,825.61x = 165,962,276.57
  5. Step 5: Solve for x
    x = 165,962,276.57/14,825.61
  6. Step 6: Final answer
    x = 11,194.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.